Samuel b



S. B. STRONG.

Pump.

Patented July 13, 1875.

New York, have invented certain Improve- NIED 'ra'rns TENT SAMUEL B.STRONG, OF ALBION, NEW YORK.

IMPROVEMENT. IN PUMPS.

Specification forming part of Letters Patent No. [65,629, dated July 13,1875; apphcation filed May 24, 1875.

To all whom it may concern Be it known that I, SAMUEL B. STRONG, ofAlbion, in the county of Orleans and State of ments in Pumps, of whichthe following is a specification My invention consists in a peculiararrangement of racks and segmental gearing, whereby I obtain a greatermotion in the piston of pumps than can be obtained by means of simplelevers. I also secure a uniform motion and power in the piston, which isproportionate to the amount of power applied to the handle.

Figure l in the drawing is avertical section through 00 a: in Fig. 2.Fig. 2 is atop View.

A is the stock of any ordinary pump, to the top of which a casing, B, isfixed. a a are racks attached to the inside of the casing B. O is ahandle, which is provided with the segments b b, which mesh into theracks a a, and also the segment 0, which meshes into the rack D. Achannel is made in the casing B, opposite the racks a a, in which therack D may slide. E is the ordinary piston-rod, which is attached to therack D. I

It will be seen that the fulcrum of the handle 0 is at the point ofengagementbetween the segments 12 b and the racks to a, and that. as thehandle is forced down, the fulcrum rises through a distance equivalentto the amount of rack traversed by the segments 12 I), while the rack Dis moved double that distance. Double racks a a and segments 1) b areused to insure a firm bearing for the handle.

What I claim as new, and desire to secure by Letters Patent, is

The combination of the racks a a, segments 1) 1), segment 0, rack D,handle 0, casing B, pump-stock A, and pistorrrod E, substantially asshown and described.

SAMUEL B. STRONG.

Witnesses H. M. HOPKINS,

JOHN A. STRAIGHT.

